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Diverter valve won't lock

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Hi,

I recently started upping boost for summer, noticed I could not boost over 14psi and my throttle lifts would cause 20 psi "releases". Checking under the hood I noticed the diverter valve closest to the throttle body was a little loose, it does not lock in place into the plastic tap that you turn to unlock it. I'm assuming this would cause over-boost on throttle lifts and under-boost as well as 99 waste-gate DC under full load @ 14psi. Can that little tab be replaced is there a seal that fell out? Click here to enlarge

thank you,
me

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